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Safety Gear For An Elevator
Abstract: In a safety gear (14) for an elevator, a pressing spring device applies a resistance force against movement of a normal-wedge guide member (52) in a direction of moving away from a guide rail (10). A normal-wedge member (52) has a reverse-wedge guide surface becoming more distant from the guide rail (10) as extending upward. A reverse-wedge member is movable with respect to the normal-wedge member (52) along the reverse-wedge guide surface. A vertical-direction spring device (58) applies a resistance force against upward movement of the reverse-wedge member with respect to the normal-wedge member (52). A spring constant of the vertical-direction spring device (58) is lower than a spring constant of the pressing spring device. The vertical-direction spring device (58) has a region in which a rate of change in force generated along with increase in upward displacement amount of the reverse-wedge member with respect to the normal-wedge member (52) decreases as compared to that in initial displacement.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
26 April 2021
Publication Number
18/2021
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
patent@depenning.com
Parent Application
Patent Number
Legal Status
Grant Date
2024-04-30
Renewal Date
Applicants
MITSUBISHI ELECTRIC CORPORATION
7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 100-8310, Japan
Inventors
1. SHIRAISHI, Naohiro
c/o Mitsubishi Electric Corporation, 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 100-8310, Japan
2. WATANABE, Seiji
c/o Mitsubishi Electric Corporation, 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 100-8310, Japan
3. YAMAZUMI, Mitsuhiro
c/o Mitsubishi Electric Corporation, 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 100-8310, Japan
4. KAKIO, Masayuki
c/o Mitsubishi Electric Corporation, 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 100-8310, Japan
Specification
Claims:Please see the attachment , Description:Please see the attachment
Documents
Orders
| Section | Controller | Decision Date |
|---|---|---|
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202148019113-IntimationOfGrant30-04-2024.pdf | 2024-04-30 |
| 1 | 202148019113-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [26-04-2021(online)].pdf | 2021-04-26 |
| 2 | 202148019113-PatentCertificate30-04-2024.pdf | 2024-04-30 |
| 2 | 202148019113-STATEMENT OF UNDERTAKING (FORM 3) [26-04-2021(online)].pdf | 2021-04-26 |
| 3 | 202148019113-Written submissions and relevant documents [28-03-2024(online)].pdf | 2024-03-28 |
| 3 | 202148019113-REQUEST FOR EXAMINATION (FORM-18) [26-04-2021(online)].pdf | 2021-04-26 |
| 4 | 202148019113-PROOF OF RIGHT [26-04-2021(online)].pdf | 2021-04-26 |
| 4 | 202148019113-Correspondence to notify the Controller [12-03-2024(online)].pdf | 2024-03-12 |
| 5 | 202148019113-US(14)-HearingNotice-(HearingDate-14-03-2024).pdf | 2024-02-27 |
| 5 | 202148019113-POWER OF AUTHORITY [26-04-2021(online)].pdf | 2021-04-26 |
| 6 | 202148019113-FORM 18 [26-04-2021(online)].pdf | 2021-04-26 |
| 6 | 202148019113-ABSTRACT [26-09-2022(online)].pdf | 2022-09-26 |
| 7 | 202148019113-FORM 1 [26-04-2021(online)].pdf | 2021-04-26 |
| 7 | 202148019113-CLAIMS [26-09-2022(online)].pdf | 2022-09-26 |
| 8 | 202148019113-FIGURE OF ABSTRACT [26-04-2021(online)].jpg | 2021-04-26 |
| 8 | 202148019113-DRAWING [26-09-2022(online)].pdf | 2022-09-26 |
| 9 | 202148019113-DRAWINGS [26-04-2021(online)].pdf | 2021-04-26 |
| 9 | 202148019113-FER_SER_REPLY [26-09-2022(online)].pdf | 2022-09-26 |
| 10 | 202148019113-DECLARATION OF INVENTORSHIP (FORM 5) [26-04-2021(online)].pdf | 2021-04-26 |
| 10 | 202148019113-Information under section 8(2) [26-09-2022(online)].pdf | 2022-09-26 |
| 11 | 202148019113-COMPLETE SPECIFICATION [26-04-2021(online)].pdf | 2021-04-26 |
| 11 | 202148019113-OTHERS [26-09-2022(online)].pdf | 2022-09-26 |
| 12 | 202148019113-FER.pdf | 2022-03-28 |
| 12 | 202148019113-FORM-26 [27-04-2021(online)].pdf | 2021-04-27 |
| 13 | 202148019113-FORM 3 [16-03-2022(online)].pdf | 2022-03-16 |
| 14 | 202148019113-FER.pdf | 2022-03-28 |
| 14 | 202148019113-FORM-26 [27-04-2021(online)].pdf | 2021-04-27 |
| 15 | 202148019113-COMPLETE SPECIFICATION [26-04-2021(online)].pdf | 2021-04-26 |
| 15 | 202148019113-OTHERS [26-09-2022(online)].pdf | 2022-09-26 |
| 16 | 202148019113-DECLARATION OF INVENTORSHIP (FORM 5) [26-04-2021(online)].pdf | 2021-04-26 |
| 16 | 202148019113-Information under section 8(2) [26-09-2022(online)].pdf | 2022-09-26 |
| 17 | 202148019113-FER_SER_REPLY [26-09-2022(online)].pdf | 2022-09-26 |
| 17 | 202148019113-DRAWINGS [26-04-2021(online)].pdf | 2021-04-26 |
| 18 | 202148019113-DRAWING [26-09-2022(online)].pdf | 2022-09-26 |
| 18 | 202148019113-FIGURE OF ABSTRACT [26-04-2021(online)].jpg | 2021-04-26 |
| 19 | 202148019113-FORM 1 [26-04-2021(online)].pdf | 2021-04-26 |
| 19 | 202148019113-CLAIMS [26-09-2022(online)].pdf | 2022-09-26 |
| 20 | 202148019113-FORM 18 [26-04-2021(online)].pdf | 2021-04-26 |
| 20 | 202148019113-ABSTRACT [26-09-2022(online)].pdf | 2022-09-26 |
| 21 | 202148019113-US(14)-HearingNotice-(HearingDate-14-03-2024).pdf | 2024-02-27 |
| 21 | 202148019113-POWER OF AUTHORITY [26-04-2021(online)].pdf | 2021-04-26 |
| 22 | 202148019113-PROOF OF RIGHT [26-04-2021(online)].pdf | 2021-04-26 |
| 22 | 202148019113-Correspondence to notify the Controller [12-03-2024(online)].pdf | 2024-03-12 |
| 23 | 202148019113-Written submissions and relevant documents [28-03-2024(online)].pdf | 2024-03-28 |
| 23 | 202148019113-REQUEST FOR EXAMINATION (FORM-18) [26-04-2021(online)].pdf | 2021-04-26 |
| 24 | 202148019113-STATEMENT OF UNDERTAKING (FORM 3) [26-04-2021(online)].pdf | 2021-04-26 |
| 24 | 202148019113-PatentCertificate30-04-2024.pdf | 2024-04-30 |
| 25 | 202148019113-IntimationOfGrant30-04-2024.pdf | 2024-04-30 |
| 25 | 202148019113-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [26-04-2021(online)].pdf | 2021-04-26 |
Search Strategy
| 1 | 202148019113DivE_28-03-2022.pdf |